import java.util.Scanner;

public class GuessNumber{
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        String again ;

        int answer = (int) (Math.random() * 100 + 1);
        int chances = 7;

        while (chances > 0) {

            System.out.println("请猜一个1-100之间的整数," + "你还有" + chances + "次机会:(输入-1退出游戏)");
            int guess;
            try {
                guess = scan.nextInt();
            } catch (Exception e) {
                System.out.println("请输入合法数字!");
                scan.next();
                continue;
            }
            if (guess == -1) {
                break;
            }
            if (guess > answer) {
                System.out.println("大了");
            } else if (guess < answer) {
                System.out.println("小了");
            } else {
                System.out.println("猜对了");
                break;
            }
            chances = chances - 1;

            if (chances <= 0) {
                System.out.println("你没有机会了!");

                System.out.println("再玩一次吗?(y/n)");
                again = scan.next();
                if (again.equalsIgnoreCase("y"))
                    chances = 7;

            }
        }
    }
}